package com.ygxsk.carhome.sys;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.util.Log;

import com.blankj.utilcode.util.ActivityUtils;
import com.blankj.utilcode.util.LogUtils;
import com.blankj.utilcode.util.PathUtils;
import com.blankj.utilcode.util.Utils;
import com.ygxsk.carhome.constant.ConstantSign;
import com.ygxsk.carhome.utils.CommUtils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * @author itchenqi@gmail.com
 * @ClassName:CrashHandler
 * @Description:(UncaughtException处理类,当程序发生Uncaught异常的时候,有该类来接管程序,并记录发送错误报告.)
 * @date 2013-11-14 下午06:03:10
 */
public class CrashHandler implements UncaughtExceptionHandler {

    public static final String TAG = "itchenCrashHandler";

    // 系统默认的UncaughtException处理类
    private UncaughtExceptionHandler mDefaultHandler;
    // CrashHandler实例
    private static final CrashHandler INSTANCE = new CrashHandler();
    // 程序的Context对象
    private Context mContext;
    // 用来存储设备信息和异常信息
    private final Map<String, String> infos = new HashMap<String, String>();

    // 用于格式化日期,作为日志文件名的一部分
    private final DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");

    /**
     * 保证只有一个CrashHandler实例
     */
    private CrashHandler() {

    }

    /**
     * 获取CrashHandler实例 ,单例模式
     */
    public static CrashHandler getInstance() {
        return INSTANCE;
    }

    /**
     * 初始化
     *
     * @param context
     */
    public void init(Context context) {
        mContext = context;
        // 获取系统默认的UncaughtException处理器
        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        // 设置该CrashHandler为程序的默认处理器
        Thread.setDefaultUncaughtExceptionHandler(this);

    }

    /**
     * 当UncaughtException发生时会转入该函数来处理
     */
    @Override
    public void uncaughtException(Thread thread, Throwable ex) {

        printLog(mContext, ex);

        if (!handleException(ex) && mDefaultHandler != null) {
            // 如果用户没有处理则让系统默认的异常处理器来处理
            mDefaultHandler.uncaughtException(thread, ex);
            ex.printStackTrace();

        } else {

            try {

                Thread.sleep(1000);

            } catch (InterruptedException e) {

//                LogUtils.d("itchen---->程序出现异常--" + e.getMessage());

            }

            //PublicDataTool.finishAllActivity();
            //Session.killBackgroundProcess(mContext);
            Session.finishAllActivity(Utils.getApp());
            ActivityUtils.finishAllActivities();

            android.os.Process.killProcess(android.os.Process.myPid());
            System.exit(1);

        }
    }

    private void printLog(Context context, Throwable ex) {

        StringBuilder sb = new StringBuilder();
        PackageManager pm = mContext.getPackageManager();

        try {

            //2023-2-6 11:59:58 已过时
            PackageInfo packinfo = pm.getPackageInfo(mContext.getPackageName(), 0);

//            PackageInfo packinfo = null;
//
//                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
//                    packinfo = context.getPackageManager().getPackageInfo(mContext.getPackageName(), 0).getLongVersionCode();
//                }
//                context.getPackageManager().getPackageInfo(mContext.getPackageName(), 0).versionCode;


            sb.append("程序的版本号为" + packinfo.versionName);
            sb.append("\n");

            Field[] fields = Build.class.getDeclaredFields();
            for (int i = 0; i < fields.length; i++) {

                fields[i].setAccessible(true);
                String name = fields[i].getName();
                sb.append(name + " = ");
                String value = fields[i].get(null).toString();
                sb.append(value);
                sb.append("\n");
            }

            // 3.获取程序错误的堆栈信息 .
            StringWriter writer = new StringWriter();
            PrintWriter printWriter = new PrintWriter(writer);
            ex.printStackTrace(printWriter);

            String result = writer.toString();
            sb.append(result);

            LogUtils.e("itchen---printLog--->" + sb);

            // TODO: 2023-04-26 09:42 给错误信息，提交到服务器

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    /**
     * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
     *
     * @param ex
     * @return true:如果处理了该异常信息;否则返回false.
     */
    private boolean handleException(Throwable ex) {
        if (ex == null) {
            return false;
        }
        // 使用Toast来显示异常信息
        new Thread() {

            @Override
            public void run() {

                Looper.prepare();
                Looper.loop();

            }
        }.start();

        collectDeviceInfo(mContext);
        saveCrashInfo2File(ex);

        return true;
    }

    /**
     * 收集设备参数信息
     *
     * @param ctx
     */
    public void collectDeviceInfo(Context ctx) {

        try {

            PackageManager pm = ctx.getPackageManager();
            PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);

            if (pi != null) {

                String versionName = pi.versionName == null ? "null" : pi.versionName;

                String versionCode = "";
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
                    //int versionResult = (int) pi.getLongVersionCode();
                    versionCode = "" + (int) pi.getLongVersionCode();
                } else {
                    versionCode = pi.versionCode + "";
                }

                infos.put("versionName", versionName);
                infos.put("versionCode", versionCode);

            }
        } catch (NameNotFoundException e) {
            Log.e(TAG, "an error occured when collect package info", e);
        }

        Field[] fields = Build.class.getDeclaredFields();

        for (Field field : fields) {

            try {
                field.setAccessible(true);
                infos.put(field.getName(), field.get(null).toString());
                Log.d(TAG, field.getName() + " : " + field.get(null));
            } catch (Exception e) {
                Log.e(TAG, "an error occured when collect crash info", e);
            }

        }
    }

    /**
     * @param ex
     * @return
     * @return String 返回文件名称,便于将文件传送到服务器
     * @Title: saveCrashInfo2File
     * @Description: (Save error information to a file)
     * @author itchenqi@gmail.com
     */
    private String saveCrashInfo2File(Throwable ex) {

        StringBuffer sb = new StringBuffer();
        for (Map.Entry<String, String> entry : infos.entrySet()) {
            String key = entry.getKey();
            String value = entry.getValue();
            sb.append(key + "=" + value + "\n");
        }

        Writer writer = new StringWriter();
        PrintWriter printWriter = new PrintWriter(writer);
        ex.printStackTrace(printWriter);
        Throwable cause = ex.getCause();
        while (cause != null) {
            cause.printStackTrace(printWriter);
            cause = cause.getCause();
        }
        printWriter.close();
        //String result = writer.toString();
        //---------------------------------------------------------------------------------
        try {
            //do
            //这里可以直接在子线程之中上传崩溃日志信息了
            CommUtils.addLog(Utils.getApp(),//
                    "saveCrashInfo2File",//
                    ConstantSign.REQUEST_METHOD_POST,//
                    null,//
                    writer.toString());//

        } catch (Exception e) {
            //catch
            e.printStackTrace();
        }
        //---------------------------------------------------------------------------------

        sb.append(writer.toString());


        try {

            long timestamp = System.currentTimeMillis();
            String time = formatter.format(new Date());
            String fileName = "crash-" + time + "-" + timestamp + ".txt";

            if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {

                //String path = "/sdcard/crash/propertysmart/";
                //2022-11-16 17:16:46添加崩溃日志信息
                String path = PathUtils.getExternalAppFilesPath() + File.separator + "crash" + File.separator;

                File dir = new File(path);
                if (!dir.exists()) {
                    dir.mkdirs();
                }
                FileOutputStream fos = new FileOutputStream(path + fileName);
                fos.write(sb.toString().getBytes());
                fos.close();
            }
            return fileName;
        } catch (Exception e) {
            Log.e(TAG, "an error occured while writing file...", e);
        }
        return null;
    }
}
